Alcoholism Flashcards

0
Q

NAD+ requiring enzyme

A

Alcohol dehydrogenase

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1
Q

Drinking alcohol that passes first through the liver

A

Ethanol

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2
Q

Alcohol dehydrogenase oxidizes ethanol to?

A

Acetaldehyde

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3
Q

Oxidizes acetaldehyde to become acetate

A

Aldehyde dehydrogenase

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4
Q

Second major pathway for ethanol metabolism

Found in SER predominantly in mitochondria

A

MEOS or microsomal ethanol oxidizing system

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5
Q

MEOS involves

A

Cytochrome P450 (CYP2E1)

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6
Q

MEOS requires ________ instead of NAD+

A

NADPH

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7
Q

MEOS induced in individuals who?

A

Chronically consume alcohol

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8
Q

A non oxidative pathway of alcohol

A

FAEE or fatty acid ethyl ester

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9
Q

Formation of fatty acid ethyl esters

Highly susceptible to the toxic effects of alcohol

A

FAEE

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10
Q

Pwede din ito sa metabolism ng alcohol kaya labg kailangan ng _______ at _______ kaya walang major role ito sa normal conditions.

A

Peroxisomes

Catalase
Hydrogen peroxide

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11
Q

This can be lead to severe hypoglycemia because of increase production of NADH

A

Decrease gluconeogenesis

Increase glycolysis

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12
Q

This can lead to lactic acidosis because of increase production of NADH

A

Increase pyruvate that converted to lactate

Increase ketoacidosis

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13
Q

1% of alcohol in the blood

A

.10 of BAC

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14
Q

Mild impairement

A

0.0-0.05

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15
Q

Increase impairement

A

0.06-0.15

16
Q

Severe impairement

A

0.16-0.30

17
Q

Life threatening

A

0.31-0.45

18
Q

Wernickes encephalopathy triads of symptoms

A

Mental confusion
Ataxia
Opthalmoplegia

19
Q

Nagkakaroon ng wernickes encephalopathy ang mga lasingger because of lack of?

A

Thiamine or vitamin B1

20
Q

Cause of fatty liver

A

Accumulation of triglycerides and other fats in the liver cell

21
Q

Conversion of carbs to fats

A

Lipogenesis

22
Q

Increase in fatty liver

A

Lipogenesis
Fatty acids
NADH
Glyceraldehyde 3 phosphate

23
Q

Decrease in fatty liver

A

NAD
Dehydrogenase
Catabolism

24
Q

inhibited by the low NAD+/NADH ratio

A

Dehydrogenase

25
Q

Potential pathophysiologic mechanisms for fatty liver include the following:

A
  • Decreased mitochondrial fatty acid beta-oxidation
  • Increased endogenous fatty acid synthesis or enhanced delivery of fatty acids to the liver
  • Deficient incorporation or export of triglycerides as very low-density lipoprotein (VLDL)
26
Q

normal circumstances:reduction of NAD (NAD to NADH) is finely regulated by the

A

Krebs cycle

27
Q

excess production of superoxide radicals via the interaction of CYP2E1 with

A

Cytochrome reductase

28
Q

Elevated levels of oxygen radicals can generate a state of oxidative stress, which through various mechanisms leads to

A

Cell damage

29
Q

Oxygen radicals also can interact with fat molecules (lipids) in the cell in a process known as

A

Lipid peroxidation